Light transmission detection device for lamp box cloth

Abstract

The utility model discloses a light transmission detection device for lamp box cloth, which belongs to the technical field of detection devices and comprises a detection box, a mounting plate is fixedly connected to the right side in the detection box, a positive and negative motor is fixedly mounted at the top of the mounting plate, a threaded rod is fixedly connected to the output end of the positive and negative motor, and a moving block is in threaded connection to the outer wall of the threaded rod. A vertical rod movably penetrates through the surface of the moving block, a transmission block is fixedly connected to the left side of the moving block, and a mounting block is fixedly connected to the left side of the transmission block. Through the structural design of the vertical plate, the pull block, the box cover, the detection box, a light transmission detector, a mounting cavity, a limiting rod, a limiting groove, a spring, a fixing plate, a placing groove, a clamping plate, a connecting rod, a transmission plate, a detection lamp, a through groove and a push block, when light transmission detection needs to be carried out on the lamp box cloth, light transmission detection can be carried out on the lamp box cloth in a sealed environment; therefore, the influence of the brightness in the environment is avoided, and the accuracy of the detection data is improved.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically a light transmission detection device for lightbox fabric. Background Technology

[0002] Lightbox fabric is a type of signboard material composed of two layers of PVC and one layer of high-strength mesh fabric. Also known as polycloth, it comes in two types: internally illuminated and externally illuminated. Key points for judging the quality of lightbox fabric include: thickness, tensile strength, elongation, weather resistance, light transmittance, flame retardancy, peel strength, and smoothness. For applications involving inkjet printing, ink absorption and color reproduction are also important. Defects in internally illuminated lightbox fabric can manifest in various ways, such as: yarn breakage, missing yarns, and deformation in the raw mesh fabric; holes, deformation, curling, and unevenness in the fabric itself. Therefore, it is necessary to inspect the quality of lightbox fabric before it leaves the factory.

[0003] A search revealed Chinese patent CN204374084U, which discloses a lightbox fabric light transmittance testing device. The device includes a frame with an inclined testing platform. The testing platform comprises a snap-fit ​​back cover and a glass operating surface. An LED light mounting substrate is positioned between the back cover and the glass operating surface, and several LEDs are evenly distributed on the LED mounting substrate. Horizontal guide rollers are respectively positioned at the top and bottom of the testing platform. The plane of the glass operating surface is tangent to the roller surface of the guide rollers. A feeding end and a receiving end are also provided on the back of the testing platform. The guide rollers are rotatably connected to the testing platform via connectors. This invention, by setting a backlit testing platform and using guide rollers to move the lightbox fabric on the testing platform, allows for manual detection of the lightbox fabric's quality. This lightbox fabric light transmittance testing device has a simple structure, is easy to operate, and has a high defect detection rate.

[0004] However, the above design still has shortcomings. When performing light transmittance detection, it cannot be carried out in a sealed environment, which will be affected by the brightness of the environment, thereby reducing the accuracy of the detection data.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a light transmission detection device for lightbox fabric to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a light box fabric light transmittance detection device, comprising a detection box, an installation plate fixedly connected to the right side inside the detection box, a forward and reverse motor fixedly installed on the top of the installation plate, a threaded rod fixedly connected to the output end of the forward and reverse motor, a moving block threadedly connected to the outer wall of the threaded rod, a vertical rod movably disposed through the surface of the moving block, a transmission block fixedly connected to the left side of the moving block, an installation block fixedly connected to the left side of the transmission block, a detection lamp fixedly installed to the left side of the installation block, a fixing plate fixedly connected to the upper left side inside the detection box, a placement groove formed on the lower surface of the fixing plate extending into the interior, an installation cavity formed on the left side of the placement groove inside the fixing plate, and the installation cavity... The front end face has a through groove, and the left side of the mounting cavity has a limiting groove. A transmission plate is movably arranged inside the mounting cavity. A connecting rod is fixedly connected to the right side of the transmission plate, and one end of the connecting rod extends into the interior of the placement groove. A clamping plate is fixedly connected to the right side of the connecting rod. A push block is fixedly connected to the front end face of the transmission plate, and the push block is movably arranged inside the through groove. A limiting rod is fixedly connected to the left side of the transmission plate, and one end of the limiting rod extends into the interior of the limiting groove. A spring is sleeved on the outer wall of the limiting rod. A telescopic cylinder is fixedly installed below the fixed plate. A light transmission detector is fixedly connected to the output end of the telescopic cylinder. Multiple limiting telescopic rods are fixedly connected to the left side of the light transmission detector at the top and bottom of the telescopic cylinder.

[0008] As a further embodiment of this utility model: an L-shaped plate is fixedly connected to the left side of the testing box, and a horizontal plate is fixedly connected to the top of the L-shaped plate.

[0009] As a further embodiment of this utility model: a vertical plate is fixedly connected to the top of the horizontal plate, and a control panel is fixedly installed on the left side of the vertical plate.

[0010] As a further embodiment of this utility model: an installation groove is provided on the outer right side of the vertical plate, and a second magnetic plate is fixedly installed inside the installation groove.

[0011] As a further embodiment of this utility model: support blocks are fixedly connected to the four corners of the bottom of the testing box, and a box cover is rotatably provided on the top of the testing box.

[0012] As a further embodiment of this utility model: a first magnetic plate is fixedly installed on the top of the box cover, and a pull block is fixedly installed on the right side of the first magnetic plate.

[0013] This utility model has the following beneficial effects:

[0014] (1) Through the structural design of vertical plate, pull block, box cover, detection box, light transmittance detector, installation cavity, limit rod, limit groove, spring, fixing plate, placement groove, clamping plate, connecting rod, transmission plate, detection lamp, through groove and push block, when it is necessary to perform light transmittance detection on the lightbox cloth, it can be realized in a sealed environment, so as not to be affected by the brightness of the environment, thereby improving the accuracy of the detection data. This solves the problem that when performing light transmittance detection, it is impossible to perform detection in a sealed environment, which will be affected by the brightness of the environment and thus reduce the accuracy of the detection data.

[0015] (2) Through the structural design of mounting block, transmission block, threaded rod, forward and reverse motor, mounting plate, moving block and vertical rod, it is possible to facilitate light transmission detection at different positions of the light box cloth, thereby further improving the accuracy of detection. Attached Figure Description

[0016] Figure 1 This is a partial three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal partial structure of the present invention from the front view.

[0018] Figure 3 This is an enlarged partial structural diagram of point A in this utility model;

[0019] Figure 4 This is an enlarged partial structural diagram of point B in this utility model;

[0020] Figure 5 This is a partial structural diagram of the through groove, which is the main feature of this utility model.

[0021] In the diagram: 1. Vertical plate; 2. Control panel; 3. Horizontal plate; 4. L-shaped plate; 5. First magnetic plate; 6. Pull block; 7. Box cover; 8. Detection box; 9. Support block; 10. Mounting slot; 11. Second magnetic plate; 12. Limiting telescopic rod; 13. Telescopic cylinder; 14. Light transmission detector; 15. Mounting cavity; 16. Limiting rod; 17. Limiting slot; 18. Spring; 19. Fixing plate; 20. Placement slot; 21. Clamping plate; 22. Connecting rod; 23. Transmission plate; 24. Mounting block; 25. Detection light; 26. Transmission block; 27. Threaded rod; 28. Forward and reverse motor; 29. ​​Mounting plate; 30. Moving block; 31. Vertical rod; 32. Through slot; 33. Push block. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-5This utility model provides an embodiment of a lightbox fabric light transmittance detection device, comprising a detection box 8, a detection lamp 25 fixedly installed on the left side of a mounting block 24, a fixing plate 19 fixedly connected to the upper left side of the inside of the detection box 8, a placement groove 20 extending from the lower surface of the fixing plate 19, an installation cavity 15 located inside the fixing plate 19 on the left side of the placement groove 20, a through groove 32 connected to the front end of the installation cavity 15, a limiting groove 17 connected to the left side of the installation cavity 15, a transmission plate 23 movably disposed inside the installation cavity 15, a connecting rod 22 fixedly connected to the right side of the transmission plate 23, one end of the connecting rod 22 extending into the inside of the placement groove 20, a clamping plate 21 fixedly connected to the right side of the connecting rod 22, a push block 33 fixedly connected to the front end of the transmission plate 23, and the push block 33 movably disposed in the through groove 20. Inside the groove 32, a limit rod 16 is fixedly connected to the left side of the transmission plate 23, and one end of the limit rod 16 extends into the interior of the limit groove 17. A spring 18 is sleeved on the outer wall of the limit rod 16. A telescopic cylinder 13 is fixedly installed below the fixed plate 19. A light transmission detector 14 is fixedly connected to the output end of the telescopic cylinder 13. Multiple limit telescopic rods 12 are fixedly connected to the left side of the light transmission detector 14 at the top and bottom of the telescopic cylinder 13. A control panel 2 is fixedly installed on the left side of the vertical plate 1. An installation groove 10 is opened on the outer wall of the right side of the vertical plate 1. A second magnetic plate 11 is fixedly installed inside the installation groove 10. Support blocks 9 are fixedly connected to the four corners of the bottom of the detection box 8. A box cover 7 is rotatably installed on the top of the detection box 8. A first magnetic plate 5 is fixedly installed on the top of the box cover 7. A pull block 6 is fixedly installed on the right side of the first magnetic plate 5.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, when it is necessary to test the light transmission of the lightbox fabric, the cover 7 can be opened, and then the push block 33 can be moved. The movement of the push block 33 drives the transmission plate 23 to move, and the movement of the transmission plate 23 drives the clamping plate 21 to move through the connecting rod 22. When the clamping plate 21 moves to the appropriate position, one end of the lightbox fabric is placed into the placement slot 20 and located on the right side of the clamping plate 21. Then the push block 33 is released. At this time, the elasticity of the spring 18 can be used to drive the clamping plate 21 to move closer to the lightbox fabric until it contacts the lightbox fabric and effectively limits and fixes it. Then the cover 7 is closed, and then the detection lamp 25 is turned on. The detection lamp 25 can produce light, and the light will pass through the lightbox. The fabric is directly illuminated onto the light transmittance detector 14, thus completing the detection of the lightbox fabric. The entire detection process is carried out in a sealed environment and is not affected by ambient light, thereby improving the accuracy of the detection data. At the same time, the light transmittance detector 14 can be moved by the output end of the telescopic cylinder 13. By reasonably adjusting the position of the light transmittance detector 14, it is easier to meet the detection needs of different scenarios. The setting of multiple limit telescopic rods 12 can improve the stability of the light transmittance detector 14 during movement, solving the problem that when performing light transmittance detection, it is impossible to perform detection in a sealed environment, which leads to the influence of ambient light and thus reduces the accuracy of the detection data.

[0029] The first magnetic plate 5 and the second magnetic plate 11 facilitate the vertical orientation of the box cover 7, making it easier to remove the lightbox cloth.

[0030] An installation plate 29 is fixedly connected to the right side inside the testing box 8. A forward and reverse motor 28 is fixedly installed on the top of the installation plate 29. A threaded rod 27 is fixedly connected to the output end of the forward and reverse motor 28. A moving block 30 is threadedly connected to the outer wall of the threaded rod 27. A vertical rod 31 is movably arranged through the surface of the moving block 30. A transmission block 26 is fixedly connected to the left side of the moving block 30. An installation block 24 is fixedly connected to the left side of the transmission block 26. An L-shaped plate 4 is fixedly connected to the left side of the testing box 8. A horizontal plate 3 is fixedly connected to the top of the L-shaped plate 4. A vertical plate 1 is fixedly connected to the top of the horizontal plate 3.

[0031] Specifically, such as Figure 2 and Figure 4 As shown, during the testing of the lightbox fabric, the output end of the forward and reverse motor 28 drives the threaded rod 27 to rotate. The rotation of the threaded rod 27 drives the moving block 30 to move. The movement of the moving block 30 drives the transmission block 26 to move. The movement of the transmission block 26 drives the detection lamp 25 to move through the mounting block 24. By reasonably adjusting the height of the detection lamp 25, it is convenient to perform light transmission testing on different positions of the lightbox fabric, thereby further improving the accuracy of the test.

[0032] Working principle: In this application, when it is necessary to perform light transmission detection on the lightbox fabric, the cover 7 can be opened, and then the push block 33 can be moved. The movement of the push block 33 drives the transmission plate 23 to move, and the movement of the transmission plate 23 drives the clamping plate 21 to move through the connecting rod 22. When the clamping plate 21 moves to the appropriate position, one end of the lightbox fabric is placed into the placement slot 20 and located on the right side of the clamping plate 21. Then the push block 33 is released. At this time, the elasticity of the spring 18 can be used to drive the clamping plate 21 to move closer to the lightbox fabric until it contacts the lightbox fabric and effectively limits and fixes it. Then the cover 7 is closed, and then the detection lamp 25 is turned on, which can generate light. The light shines directly through the lightbox fabric onto the light transmittance detector 14, thus completing the detection of the lightbox fabric. The entire detection process is carried out in a sealed environment and is not affected by ambient light, thereby improving the accuracy of the detection data. Secondly, during the detection of the lightbox fabric, the output end of the forward and reverse motor 28 drives the threaded rod 27 to rotate. The rotation of the threaded rod 27 drives the moving block 30 to move. The movement of the moving block 30 drives the transmission block 26 to move. The movement of the transmission block 26 drives the detection lamp 25 to move through the mounting block 24. By reasonably adjusting the height of the detection lamp 25, it is convenient to perform light transmittance detection on different positions of the lightbox fabric, thereby further improving the accuracy of the detection.

[0033] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. At the same time, the electrical components mentioned in this application are all connected to an external power supply and control switch when in use. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, this utility model will not explain the control method and circuit connection in detail. Moreover, the external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0034] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A light transmission detection device for lightbox fabric, comprising a detection box (8), characterized in that: An installation plate (29) is fixedly connected to the right side inside the detection box (8). A forward and reverse motor (28) is fixedly installed on the top of the installation plate (29). A threaded rod (27) is fixedly connected to the output end of the forward and reverse motor (28). A moving block (30) is threadedly connected to the outer wall of the threaded rod (27). A vertical rod (31) is movably arranged through the surface of the moving block (30). A transmission block (26) is fixedly connected to the left side of the moving block (30). The left side of the transmission block (26) is... A mounting block (24) is fixedly connected to the detection box (8). A detection lamp (25) is fixedly installed on the left side of the mounting block (24). A fixing plate (19) is fixedly connected to the upper left side of the detection box (8). A placement groove (20) is opened on the lower surface of the fixing plate (19). An installation cavity (15) is opened on the left side of the placement groove (20) inside the fixing plate (19). A through groove (32) is opened on the front end face of the installation cavity (15). The left side of the installation cavity (15) is... A connecting limiting groove (17) is provided. A transmission plate (23) is movably arranged inside the mounting cavity (15). A connecting rod (22) is fixedly connected to the right side of the transmission plate (23), and one end of the connecting rod (22) extends into the placement groove (20). A clamping plate (21) is fixedly connected to the right side of the connecting rod (22). A push block (33) is fixedly connected to the front end face of the transmission plate (23), and the push block (33) is movably arranged inside the through groove (32). 3) A limiting rod (16) is fixedly connected to the left side, and one end of the limiting rod (16) extends into the interior of the limiting groove (17). A spring (18) is sleeved on the outer wall of the limiting rod (16). A telescopic cylinder (13) is fixedly installed below the fixing plate (19). A light transmission detector (14) is fixedly connected to the output end of the telescopic cylinder (13). Multiple limiting telescopic rods (12) are fixedly connected to the left side of the light transmission detector (14) at the top and bottom of the telescopic cylinder (13).

2. The light transmittance detection device for lightbox fabric according to claim 1, characterized in that: An L-shaped plate (4) is fixedly connected to the left side of the detection box (8), and a horizontal plate (3) is fixedly connected to the top of the L-shaped plate (4).

3. The light transmittance detection device for lightbox fabric according to claim 2, characterized in that: A vertical plate (1) is fixedly connected to the top of the horizontal plate (3), and a control panel (2) is fixedly installed on the left side of the vertical plate (1).

4. The light transmittance detection device for lightbox fabric according to claim 3, characterized in that: An installation groove (10) is provided on the outer right side of the vertical plate (1), and a second magnetic plate (11) is fixedly installed inside the installation groove (10).

5. The light transmittance detection device for lightbox fabric according to claim 1, characterized in that: Support blocks (9) are fixedly connected to the four corners of the bottom of the test box (8), and a box cover (7) is rotatably installed on the top of the test box (8).

6. The light transmittance detection device for lightbox fabric according to claim 5, characterized in that: A first magnetic plate (5) is fixedly installed on the top of the box cover (7), and a pull block (6) is fixedly installed on the right side of the first magnetic plate (5).

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